SEARCH RESULT

 Changes in operating conditions (ESP chemicals and changes in the physical properties of the gas in) the ESP field strength, the emission current and the corona current in order to determine the relationship on the number of spark, an understanding of the effect it would cause both the operational variability.

International Iron & Steel Symposium
UDCS

Ahmet BALIK Hüseyin DEMİREL Muhammed Esad ÇAYIR

Output characteristic curve of photovoltaic arrays has one global peak and one or more local peak under partially shaded conditions. The conventional maximum power point tracking (MPPT) algorithms such as Incremental Conductance (IC) may be trapped in the local maximum power point. So they may not find global maximum power point. However; soft computing methods such as Bat algorithm may find it. This paper proposes MPPT of photovoltaic system using modified BA and IC algorithm. The standard BA has been modified by adding a similar feature to tabu list of Tabu Search algorithm. In search process, firstly, modified BA is used to determine the area of global peak, then IC algorithm is replaced to track the maximum power point in the area of global peak. If the power varies greatly and rapidly, the search process starts again. Standard BA, IC algorithm and the proposed method are simulated under standard test condition and partially shaded conditions. Simulations show that the proposed method is successful even in difficult conditions such as partial shadowing.

1.st International Conference Energy Systems Engineering
ıcese'17

Hüseyin DEMİREL M. Kadir KARAGÖZ Bilgehan ERKAL